IRIDIUM 172, 43927
Orbit data source: Space-Track
IRIDIUM 172, 43927 is a payload satellite owned by Iridium (US) in LEO that was launched on Fri, 11 Jan 2019 UTC via an FALCON 9 launch vehicle from the Air Force Western Test Range (AFWTR). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.
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43927 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
NGIS SSG Gilbert
Mission
Operational Commercial Communications
Bus & Motor
ELITEBUS, Unknown motor
Mass
860 kg wet, 700 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Trap Box + 2 Pan, 4.8 m
Radar Cross Section
10.154 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 12 hours ago
TLE from 12 hours ago
0 IRIDIUM 172
1 43927U 19002F 26252.60026521 .00000148 00000-0 45882-4 0 9990
2 43927 86.3989 318.3052 0002266 95.6389 264.5065 14.34217191401060Epoch: 2026-09-09T14:24Z
TLE epoch observation values (Epoch: 2026-09-09T14:24:22.914Z)
Latitude
-0.00003°
Longitude
113.55972°
Altitude
780.876 km
Speed
7.463 km/s
True Right ascension
21h 13m 13s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
18:52:21
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
776.254 km
Perigee altitude
773.013 km
Semi-major axis
7,152.77 km
Eccentricity
0.00023
Inclination
86.3989°
RAAN
318.3052°
Arg. of periapsis
95.6389°
True anomaly
264.48065°
Mean anomaly
264.5065°
Eccentric anomaly
264.49358°
Mean motion
3.58783 °/min
Orbital period
100.34 mins
BSTAR
0.000045882
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Other satellites on launch #2 in the year 2019 (2019-01-11 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.IRIDIUM 172 Visibility forecast
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Span | Click to sort rows by Start time (UTC) header in descending order | Start Az. | Max El. time (UTC) | Max El. Az. | Max El. | End time (UTC) | End Az. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-09-10 03:56:13.336Z | 122.459° SE | 2026-09-10 03:59:13.336Z | 84.485° E | 20.019° | 2026-09-10 04:02:13.336Z | 43.414° NE |
| 8 mins | 2026-09-10 05:36:13.336Z | 211.566° SW | 2026-09-10 05:40:13.336Z | 290.076° WNW | 43.167° | 2026-09-10 05:44:13.336Z | 346.688° N |
| 8 mins | 2026-09-10 16:07:13.336Z | 20.661° NNE | 2026-09-10 16:10:13.336Z | 80.393° E | 45.481° | 2026-09-10 16:15:13.336Z | 156.163° SSE |
| 6 mins | 2026-09-10 17:48:13.336Z | 312.679° NW | 2026-09-10 17:50:13.336Z | 285.96° WNW | 19.281° | 2026-09-10 17:54:13.336Z | 235.502° WSW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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